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Finding the Fourth Proportional to 209.44, 314.34 and 200.44

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Solution

The fourth proportional to 209.44, 314.34 and 200.44 is: 300.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    209.44 : 314.34 = 200.44 : x
  2. Step 2: Convert to fraction form
    209.44/314.34 = 200.44/x
  3. Step 3: Cross multiply
    209.44x = 314.34 × 200.44
  4. Step 4: Simplify right side
    209.44x = 63,006.31
  5. Step 5: Solve for x
    x = 63,006.31/209.44
  6. Step 6: Final answer
    x = 300.83

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.